Apparatus for charging refrigerating apparatus with ammonia solution.



Patented My 25, I899.

Nn.- 629,359. A

w. w. HARRIS. APPARATUS FOR CHARGING REFRIGERATING APPARATUS WITH AMMONIA SULUTHJN.

. (Application flied Apr. 26, 1899.) (No Indel.)

2 Sheets'$huat L No. 629,359. Patented My 25, I899.

w. w. HARRIS. APPARATUS .FOR OHARGHIG REFBIGERATIHG APPARATUS WITH AMMONIA SOLUTION.

(Application filed Apr. 26, 1899.)

2 Sheets-Shae! 2.

(Nu Nodal) TH: mom's Pcrzns co.. PHOTQUTNOM wnsnmsmn. a. c

UNITED j STATES PATIENT O e-m ca WILLIAM W LLINGTON nAnnrs, on Lonnon, ENGLAND, ASSIGNOR To PAUL PFLEIDERER, or SAME PLACE.

APPARATUS FOR CHARGI NG REFRIGERATING APPARATUS WITH AMlllONlA SOLUTION.

'srncrnrcA'rrorrrormin part of Letters Patent No. 629,359, dated July 25, 1899.

Original application filed October 15 1898, Serial No. 693 ,658. Divided and this application filed April 26, 1899. Serial No.

. A 71%,538- (No model.)

pump which forms part of it can be used both for withdrawing air from the interior of the refrigerating apparatus and for subsequently forcing ammonia solution into the combiner.

Figure l is a side elevation, and Fig. 2a plan, of the apparatus. Fig. 3 is a vertical section, on a larger scale, of the lower part of the pump-barrel; and Fig. 4 is a horizontalsectionon the line 4 4, Fig.3.

G is the barrel of a vertical pump, and-H a tank below the pump, containing a coil of pipe H. As will be seen from Figs. 3 and 4,

the lower part of the pump-barrel has attached to it a conical plug a, received into a conical seat in a fixed block b. The plug ahas a handle 0, extending from it, by which the plug may have a quarter-turn given to it. At the top of the plug are carried the inlet-valveg; and the delivery-valve d, the valve c opening upward and the valvd. downward. The

space below the inlet-valve o is connected by a passage 0 angles to one another in the side of the plug, and similarly the space below the outlet or delivery valve (5. is connected by a passage (1' with two ports 01?; In the conical seatb are four equidistant ports b b b b. The port I) has a pressure-gage ings) connected to it. The opposite portb is similarlyconnected withavacuumage. The port 1) is connected to a pipe 2, leac ing from the lower part of the combiner of the refrigcrating apparatus which is to be charged with ammonia, and the opposite port 6 can be connected to a pipe f, which is inserted into a vessel K, containing ammonia solution. Thepipe eis, as shown at Fig. 2, branched at its end, one branch having on it a-stop valve e, being connected with the port 22 above menthe combiner *dotted lines with twoports a at'right" (not shown in the draw-- tioned, and the other having on it astop-valve 6?, being connected to the upper end of the coil of pipe H in the tank H, above which the pump is mounted. When the stop-cock e is opened and 6 closed, water can pass out from through the coil of pipe H and be collected. .When the stop-cock e is opened and a closed and the handle a on the plug a is turned into the position shown by full lines in Fig. 4, the pump can be used for exhausting air and water from the combiner and other parts of the refrigerating apparatus,and when the handle a has a quarter-turn given to it and is turned into the position shown by the pump can be used for drawing ammonia solution from the vessel K and.

forcing it into the combine-r.

L is a lever pivoted at L, by which a reciprocatin g to-and-fro movement can be given tothe pump-piston. L is alink passing from the lever to the piston-rod.

This ."case is a division of my application filed October. 15, 1898, Serial No. 693,658.

What Iclaim is+ 1'. The combination of a vertical pump, a conical plug at thebottom of the pump-barrel,

a corresponding seat in which the plug rests,

a port in the conical seat to which a pipe leading from the combiner of a refrigerating apparatus may be coupled, a second port in the conical seat to which a pipe passing into a vessel containing ammonia solution can be coupled, inlet and outlet valves at the bottom of the pump-barrel and passages through the conical plug from below the inlet and outlet Valvesto ports in its side so situated that the exhaust-valve can be put into connection with one port in the conical valve-seat and the outlet-valves simultaneously put in connection with the other port and so that by giving a partial turn to the pump-barrel the connection can be reversed.

2. The combination of a vertical pump, a

' tank below it, a cooling-coil containedin the tank, a conical plug extending downward from the bottom of the pump-barrel, a conical seat into which the plug fits, a port in the conical seat to which a pipe having a stop-cock upon it leading from the combiner of the refrigerating apparatus may be coupled, a branch on this pipe also having a stop-cock upon it and coupled to the cooling-coil, asec 0nd port in the valve-seat to which a pipe passing from a vessel containing ammonia maybe coupled, inlet and outlet valves at the bottom of the pump-barrel and passages through the conical plug from below the inlet and outlet Valves to ports in its side so situated that the 10 exhaust-valve can be put into connection with one port in the conical valve-seat and the outlet=valve simultaneously put in connection with'the other port and so that by giving a partial turn to the pump-barrel the connection can be reversed.

WILLIAM WA LLINGTON HARRIS.

Vitnesses:

WILFRED CARPMAEL, FRED O. HARRIS. 

